Using pennies has long been recommended by reputable cookbooks. Is there really a risk at 375 degrees F? I would think the everyday fumes from an unventilated gas oven are a much more significant problem, and that's fairly common in many parts of the US.
Anyway, I've done it a hundred times, and my brain and lungs still work good-ish?
Anyway, I've done it a hundred times, and my brain and lungs still work good-ish?